Title
Low-temperature chemical synthesis of high-purity diacylglycerols (DAG) from monoacylglycerols (MAG) Low-temperature chemical synthesis of high-purity diacylglycerols (DAG) from monoacylglycerols (MAG)
Author
Faculty/Department
Faculty of Sciences. Chemistry
Faculty of Applied Engineering Sciences
Publication type
article
Publication
Berlin ,
Subject
Engineering sciences. Technology
Source (journal)
Lipids / American Oil Chemist's Society. - Berlin
Volume/pages
(2014) , p. 1-8
ISSN
0024-4201
1558-9307
ISI
000348442700010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A chemical method was developed for lowtemperature synthesis of DAG from MAG followed by an easy purification procedure in order to obtain high-purity DAG. Solvent-assisted and solvent-free reaction conditions were used, combined with different catalysts (sodium methoxide, p-toluenesulfonic acid, methanesulfonic acid, and sulfuric acid). All reactions were performed at 35 and 70 °C. By increasing both acidity and polarity of the catalyst the equilibrium shifts towards the formation of DAG. When using sulfuric acid in solvent-assisted condition at 70 °C, 88 % conversion was obtained after 20 min of reaction (77 % w/w DAG in the reaction mixture after evaporation of the solvent). After purifying by means of column chromatography, 96 % pure DAG were obtained. The overall yield of DAG was 81 %.
E-info
https://repository.uantwerpen.be/docman/iruaauth/70d0f9/b4a449d3c51.pdf
Full text (open access)
https://repository.uantwerpen.be/docman/irua/679c3a/8979.pdf
E-info
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Handle